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| en:maxillary-artery [2023/06/17 07:09] – brahmantra | en:maxillary-artery [] () – - () 127.0.0.1 | ||
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| - | ====== MAXILLARY ARTERY ====== | ||
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| - | MAXILLARY ARTERY | ||
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| - | * Features | ||
| - | * Larger terminal branch of ECA | ||
| - | * course | ||
| - | * Given off behind neck of mandible | ||
| - | * First / mandibular part | ||
| - | * Runs horizontally forwards | ||
| - | * First between neck of mandible and sphenomandibular ligament | ||
| - | * Below auriculotemporal nerve | ||
| - | * Along lower border of lateral pterygoid | ||
| - | * Second part | ||
| - | * Upwards and forwards | ||
| - | * Superficial to lower head of lateral pterygoid | ||
| - | * Third part | ||
| - | * Passes between two heads of lateral pterygoid | ||
| - | * Through pterygomaxillary fissure | ||
| - | * Enter pterygopalatine fossa | ||
| - | * BRANCHES | ||
| - | * Branches of first part | ||
| - | * Deep auricular artery | ||
| - | * Supplies external acoustic meatus , tympanic membrane and TMJ | ||
| - | * Anterior tympanic branch | ||
| - | * Supplies middle ear , medial surface of tympanic membrane | ||
| - | * Middle meningeal artery | ||
| - | * Lies between lateral pterygoid and spheno-mandibular ligament | ||
| - | * Then between 2 roots of auriculotemporal nerve | ||
| - | * Enters skull through foramen spinosum to reach middle cranial fossa | ||
| - | * Divides in to a | ||
| - | * large frontal branch which courses to pterion | ||
| - | * Smaller parietal branch | ||
| - | * Accessory meningeal artery | ||
| - | * Enters cranial cavity | ||
| - | * Through foramen ovale | ||
| - | * Supplies Meninges and structures in infratemporal fossa | ||
| - | * Inferior alveolar artery | ||
| - | * Runs downwards and forwards medial to ramus of mandible | ||
| - | * Reaches mandibular foramen | ||
| - | * Before entering gives a | ||
| - | * lingual branch to tongue | ||
| - | * Mylohyoid branch that descends in mylohyoid groove | ||
| - | * Passing through enters mandibular canal | ||
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| - | * Mental branch passes through mental foramen | ||
| - | * SECOND PART | ||
| - | * mainly muscular branches | ||
| - | * Masseteric | ||
| - | * Deep temporal branches ( anterior and posterior ) | ||
| - | * Ascend on lateral aspect of skull deep to temporalis muscle | ||
| - | * Pterygoid muscles | ||
| - | * Buccal branch supplies skin of cheek | ||
| - | * THIRD PART | ||
| - | * posterior superior alveolar artery | ||
| - | * Just before maxillary artery enters pterygomaxillary fissure | ||
| - | * Descends on posterior surface of maxilla | ||
| - | * Gives branches that enter canals in bone to supply molar and premolar teeth | ||
| - | * Infraorbital artery | ||
| - | * Arises just before pterygomaxillary fissure | ||
| - | * Enters orbit through infraorbital fissure | ||
| - | * Branches | ||
| - | * Middle superior alveolar branch- premolar teeth | ||
| - | * Anterior superior alveolar branch- apertures of maxilla to reach incisor and canine teeth | ||
| - | * Greater palatine artery | ||
| - | * Runs downward in greater palatine canal | ||
| - | * Emerge on posterolateral part of hard palate | ||
| - | * Through greater foramen | ||
| - | * Runs forward near lateral margin of palate | ||
| - | * Incisive canal | ||
| - | * Pharyngeal branch | ||
| - | * Runs backwards through canal | ||
| - | * Inferior aspect of body of sphenoid bone | ||
| - | * Palatovaginal / pharyngeal canal | ||
| - | * Supplies part of nasopharynx , auditory tube and sphenoidal air sinus | ||
| - | * Artery of pterygoid canal | ||
| - | * Runs backwards | ||
| - | * Supply pharynx , auditory tube and tympanic cavity | ||
| - | * Sphenopalatine artery | ||
| - | * Passes medialy through sphenopalatine foramen | ||
| - | * Enters cavity of nose | ||
| - | * Branches | ||
| - | * Posterolateral nasal branches | ||
| - | * Lateral wall of nose , paranasal sinus | ||
| - | * Posteromedial branches | ||
| - | * Nasal septum | ||
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